The protected view from Blackheath Point to St Paul's: 7.5 km, 125 m wide

Blackheath Point → St Paul's Cathedral. 7.5 km long and 125 m wide where it arrives. The eye is 47.6 m above sea level (near the orientation board); the target is 52.1 m. 130 postcodes lie in the corridor, across Greenwich, Lewisham, Southwark and City of London.